{"id":2306147,"slug":"aco-3921","name":"ACO 3921","domain":"deep-sky","class":"galaxy-group","otype":"ClG","otype_label":"ClG","ra":342.496,"dec":-64.43,"coo_err_mas":null,"coo_bibcode":"2021A&A...652A..12K","plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":26616.566,"redshift":0.0931,"dist_pc":null,"vmag":null,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":19.333334,"size_min":19.333334,"size_angle":0.0,"nbref":166,"simbad_oid":3321652,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":0,"deep_at":null,"views":2,"first_seen":"2026-08-14T16:51:18.727717+00:00","updated_at":"2026-08-14T16:51:18.727717+00:00","identifiers":[],"measurements":[],"orbit":null,"exoplanet":null,"sources":[]}